What has been conveyed by Marciano is a winning mentality. One must prepare oneself to face problems only when problems come. A very good quote.

I have a principle not to look for problems. When problems come, I will really deal with them.
What I face is limited to authority and I can control it. If it's out of control, then I'll let it go.

I once had a problem with someone plotting to fail at a job. He is not broad-minded at all because it would destroy the hopes of many people. The problem is between him and me, not with many people on the team. He didn't dare to confront me, but played a double role behind my back. I actually went to see him and told him what the consequences would be if he really meant to thwart the team's work. It will affect the lives of many people.
Finally, he only conveyed his complaints about the workload he received. I listened with all my heart. How do I know if it doesn't say anything? I replied that "this is just your stepping stone; you are tested for promotion. more burden only for people who can finish it. " We shook hands and all was well.

Life without problems. If problems are not addressed and resolved, then they will become a burden.